1、BSI Standards PublicationWB11885_BSI_StandardCovs_2013_AW.indd 1 15/05/2013 15:06Plastics Thermoplastic silage films and tubes for use in agricultureBS EN 13207:2018EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 13207 February 2018 ICS 83.140.10 Supersedes EN 13207:2001English Version Plastics
2、 - Thermoplastic silage films and tubes for use in agriculture Plastiques - Films densilage thermoplastiques et gaines pour utilisation en agriculture Kunststoffe - Thermoplastische Silofolien und -schluche fr den Einsatz in der Landwirtschaft This European Standard was approved by CEN on 10 Decembe
3、r 2017. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtai
4、ned on application to the CEN-CENELEC Management Centre or to any CEN member. This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the CEN
5、-CENELEC Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland,
6、 Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management
7、 Centre: Rue de la Science 23, B-1040 Brussels 2018 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 13207:2018 ENational forewordThis British Standard is the UK implementation of EN 13207:2018. It supersedes BS EN 13207:2001, which
8、 is withdrawn.The UK participation in its preparation was entrusted to Technical Committee PRI/21, Testing of plastics.A list of organizations represented on this committee can be obtained on request to its secretary.This publication does not purport to include all the necessary provisions of a cont
9、ract. Users are responsible for its correct application. The British Standards Institution 2018 Published by BSI Standards Limited 2018ISBN 978 0 580 92802 4ICS 83.140.10; 65.040.20Compliance with a British Standard cannot confer immunity from legal obligations. This British Standard was published u
10、nder the authority of the Standards Policy and Strategy Committee on 31 March 2018.Amendments/corrigenda issued since publicationDate Text affectedBRITISH STANDARDBS EN 13207:2018EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 13207 February 2018 ICS 83.140.10 Supersedes EN 13207:2001English Ve
11、rsion Plastics - Thermoplastic silage films and tubes for use in agriculture Plastiques - Films densilage thermoplastiques et gaines pour utilisation en agriculture Kunststoffe - Thermoplastische Silofolien und -schluche fr den Einsatz in der Landwirtschaft This European Standard was approved by CEN
12、 on 10 December 2017. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standard
13、s may be obtained on application to the CEN-CENELEC Management Centre or to any CEN member. This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN member into its own language and notif
14、ied to the CEN-CENELEC Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Ice
15、land, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENE
16、LEC Management Centre: Rue de la Science 23, B-1040 Brussels 2018 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 13207:2018 EBS EN 13207:2018EN 13207:2018 (E) 2 Contents Page European foreword . 3 1 Scope 4 2 Normative references
17、4 3 Terms and definitions . 5 4 Types and use . 6 5 Material . 6 6 Durability . 7 7 Requirements . 7 7.1 General requirements . 7 7.2 Requirements for appearance 8 8 Test methods 9 8.1 Determination of thickness . 9 8.2 Determination of width and length of the film . 9 8.3 Determination of tensile c
18、haracteristics 9 8.4 Determination of impact resistance . 9 8.4.1 General 9 8.4.2 Flat area 9 8.4.3 Fold area . 9 8.5 Resistance to artificial weathering 10 8.5.1 Principle 10 8.5.2 Exposure to xenon-arc lamps 10 8.5.3 Procedure 11 8.5.4 Calculation and expression of results . 11 8.6 Determination o
19、f the oxygen transmission rate . 11 9 Film acceptance, storage and handling 11 9.1 Delivery control 11 9.2 Storage and handling of rolls . 11 10 Designation. 11 11 Marking 12 12 Instructions for use of silage films . 12 13 Instructions for disposal of silage films and end-of-life . 12 Annex A (infor
20、mative) Exposure to other light sources 13 A.1 Medium pressure mercury vapour lamps . 13 A.2 Fluorescent UV lamps . 15 Annex B (informative) Guidance for use and disposal of silage films 17 B.1 Installation instructions 17 B.2 Use conditions . 17 B.3 Factor affecting the lifetime of silage films . 1
21、8 B.4 Removal instructions 18 Bibliography . 20 BS EN 13207:2018EN 13207:2018 (E) 3 European foreword This document (EN 13207:2018) has been prepared by Technical Committee CEN/TC 249 “Plastics”, the secretariat of which is held by NBN. This European Standard shall be given the status of a national
22、standard, either by publication of an identical text or by endorsement, at the latest by August 2018 and conflicting national standards shall be withdrawn at the latest by August 2018. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent right
23、s. CEN shall not be held responsible for identifying any or all such patent rights. This document supersedes EN 13207:2001. The following technical changes have been made in comparison to EN 13207:2001: the scope is extended to installation and removal conditions and the intended use for the applica
24、tions is specified in extended way; Clause 4 Types and use, has been added; in Clause 5 Material, the barrier polymer, has been added; a new Clause 6 Durability, has been drafted on the basis of the old Clause 5 Duration of the silage film; the Clause for requirements, test methods, acceptance, stor
25、age and handling have been drafted in a new frame; the Clauses on instructions disposal of silage films and end-of-life, have been added. According to the CEN-CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard:
26、Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia,
27、Spain, Sweden, Switzerland, Turkey and the United Kingdom. BS EN 13207:2018EN 13207:2018 (E) 4 1 Scope This European Standard specifies the requirements related to dimensional, mechanical and optical characteristics of thermoplastic films and tubes used during the manufacture of silage and designed
28、to last at least one year for protecting fodder. It specifies a classification for the durability of silage films and the test methods referred to in this standard. This European Standard is applicable to transparent, black, white or coloured (e.g. black/white) thermoplastic silage films based on po
29、lyethylene, ethylene copolymer, EVOH and polyamide. These films are intended for covering bunker silos, silage tubes or silage clamps for preserving forage. They protect the forage and preserve it from rain and air. These films are not intended to cover bales piles (e.g. straw bales and hay bales).
30、Silage films obtained by sealing two or more films in machine direction are out of the scope of this document. This European Standard also defines installation, use and removal conditions of silage films. It defines the conventional useful lifetime, as well as rules that allow evaluating the remaini
31、ng use potential in the event of a failure before the normal end-of-use date. NOTE These rules allow estimating the residual value of the films. These provisions only apply to the film itself and the damage it has undergone. Any other problem falls within the scope of professional practices and the
32、general terms and conditions of sale. 2 Normative references The following documents are referred to in the text in such a way that some or all of their content constitutes requirements of this document. For dated references, only the edition cited applies. For undated references, the latest edition
33、 of the referenced document (including any amendments) applies. EN ISO 527-1, Plastics - Determination of tensile properties - Part 1: General principles (ISO 527-1) EN ISO 527-3:1995, Plastics - Determination of tensile properties - Part 3: Test conditions for films and sheets (ISO 527-3:1995) EN I
34、SO 4892-2, Plastics - Methods of exposure to laboratory light sources - Part 2: Xenon-arc lamps (ISO 4892-2) EN ISO 7765-1, Plastics film and sheeting - Determination of impact resistance by the free-falling dart method - Part 1: Staircase methods (ISO 7765-1) ISO 4592, Plastics - Film and sheeting
35、- Determination of length and width ISO 4593, Plastics - Film and sheeting - Determination of thickness by mechanical scanning ISO 15105-2:2003, Plastics - Film and sheeting - Determination of gas-transmission rate - Part 2: Equal-pressure method BS EN 13207:2018EN 13207:2018 (E) 5 3 Terms and defin
36、itions For the purposes of this document, the following terms and definitions apply. ISO and IEC maintain terminological databases for use in standardization at the following addresses: IEC Electropedia: available at http:/www.electropedia.org/ ISO Online browsing platform: available at http:/www.is
37、o.org/obp 3.1 width overall width of the film when laid flat Note 1 to entry: It is expressed in millimetres (mm). 3.2 nominal width width of the film, as declared by the manufacturer/supplier Note 1 to entry: It is expressed in millimetres (mm). 3.3 nominal thickness thickness of a film, as declare
38、d by the manufacturer/supplier Note 1 to entry: It is expressed in micrometres (m). 3.4 roll length largest dimension of a film corresponding to the length of the unwinded roll Note 1 to entry: It is expressed in metres (m). 3.5 nominal length length of a film roll or a sheet, as declared by the man
39、ufacturer/supplier Note 1 to entry: It is expressed in metres (m). 3.6 nominal mass mass of a roll or a sheet, as declared by the manufacturer/supplier Note 1 to entry: It is expressed in kilograms (kg). 3.7 longitudinal direction MD direction parallel to the roll length, corresponding to the extrus
40、ion direction 3.8 transverse direction TD direction parallel to the width (at right angle to the length) BS EN 13207:2018EN 13207:2018 (E) 6 3.9 conventional expected lifetime expected lifetime defined by agreement between the manufacturer/supplier and the customer or, by default, minimum twelve mon
41、ths Note 1 to entry: It is expressed in years or months. 3.10 radiant exposure H time integral of irradiance Note 1 to entry: It is measured in joules per square metre (J m-2). SOURCE: ISO 9370:2017, 3.271 4 Types and use The different types of silage films are given in Table 1. Table 1 Types of fil
42、ms Type Characteristics SA Film or tube with a nominal thickness 90 m suitable for food contact SB Film or tube with a nominal thickness 100 m not suitable for food contact SC Film with a nominal thickness 35 m used as lining in combination addition to a type A or B silage film SD Film or tube with
43、a thickness 90 m having at least one coextruded layer made from a gas barrier polymer (e.g. EVOH or polyamide) SE Film with a nominal thickness 35 m having at least one coextruded layer made from a gas barrier polymer used as lining in combination addition to a type A or B silage film 5 Material Sil
44、age films in accordance with this standard are usually manufactured from: low density polyethylene (PE-LD), linear low density polyethylene (PE-LLD) and their blends; ethylene vinyl acetate copolymers (EVAC) and their blends with PE-LD or PE-LLD; ethylene butyl acrylate copolymers (EBAK) and their b
45、lends with PE-LD or PE-LLD; gas barrier polymer, e.g. EVOH or polyamide. BS EN 13207:2018EN 13207:2018 (E) 7 6 Durability The durability of silage films is characterized by the class C0, C1 or C2. This classification, given in Table 2, is depending on the duration of exposure of the film to an artif
46、icial weathering using xenon-arc lamps according to 8.5, which induces a decrease of the value of tensile strain at break equal or less than 50 % of the initial value. The class of durability shall be declared by the manufacturer/supplier. Table 2 Resistance to weathering classification Class Minimu
47、m duration of exposure h C0a140 C1 1 400 C2 2 100 aFor Type SC and SE film, only. For C1, corresponding to a duration of natural exposure of 12 months for a film used in a climatic zone 130 kly/year1)For C2 corresponding to a duration of natural exposure of 12 months for a film used in a climatic zo
48、ne between 131 kly/year and 160 kly/year and of 18 months for a film used in a climatic zone 130 kly/year1). Other light sources may be used provided that a correlation between the test results obtained with these light sources and these obtained after a natural exposure can be demonstrated. This ma
49、y be useful when the durations of the exposure to xenon-arc lamps as defined in Table 2 are too long. Details of these methods are given in Annex A (informative). In case of dispute, the exposure to xenon-arc lamps according to 8.5 and the classification according to Table 2 shall be used. 7 Requirements 7.1 General requirements Silage films shall fulfil the requirements of Table 3. 1) 1 kly = 0,041 84 GJ/m2. BS EN 13207:2018EN 13207:2018 (E) 8 Table 3 Requirements for silage films and tubes Characteristics Un
